Sum of squared spans of 2n-step polygons on square lattice.
A006773
Sum of squared spans of 2n-step polygons on square lattice.
Terms
- a(0) =0a(1) =1a(2) =5a(3) =30a(4) =186a(5) =1164a(6) =7344a(7) =46732a(8) =299604a(9) =1932900a(10) =12537542a(11) =81705782a(12) =534663812a(13) =3511466838a(14) =23136724382a(15) =152888000934
External references
- oeis: A006773